GB2161955A - Objective lens drive and support structure - Google Patents

Objective lens drive and support structure Download PDF

Info

Publication number
GB2161955A
GB2161955A GB08517551A GB8517551A GB2161955A GB 2161955 A GB2161955 A GB 2161955A GB 08517551 A GB08517551 A GB 08517551A GB 8517551 A GB8517551 A GB 8517551A GB 2161955 A GB2161955 A GB 2161955A
Authority
GB
United Kingdom
Prior art keywords
objective lens
drive
support structure
coil
yoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB08517551A
Other languages
English (en)
Other versions
GB8517551D0 (en
Inventor
Toshihiko Kurihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of GB8517551D0 publication Critical patent/GB8517551D0/en
Publication of GB2161955A publication Critical patent/GB2161955A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0933—Details of stationary parts
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0927—Electromechanical actuators for lens positioning for focusing only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0932—Details of sprung supports

Landscapes

  • Optical Recording Or Reproduction (AREA)
GB08517551A 1984-07-13 1985-07-11 Objective lens drive and support structure Withdrawn GB2161955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984105880U JPS6124820U (ja) 1984-07-13 1984-07-13 レンズ駆動装置

Publications (2)

Publication Number Publication Date
GB8517551D0 GB8517551D0 (en) 1985-08-14
GB2161955A true GB2161955A (en) 1986-01-22

Family

ID=14419245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08517551A Withdrawn GB2161955A (en) 1984-07-13 1985-07-11 Objective lens drive and support structure

Country Status (4)

Country Link
US (1) US4720185A (enrdf_load_stackoverflow)
JP (1) JPS6124820U (enrdf_load_stackoverflow)
DE (1) DE3524634A1 (enrdf_load_stackoverflow)
GB (1) GB2161955A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842392A (en) * 1986-05-26 1989-06-27 Matsushita Electric Industrial Co., Ltd. Objective lens driving unit
US5317552A (en) * 1989-06-13 1994-05-31 Kabushiki Kaisha Toshiba Linear actuator for driving an optical head incorporated in an optical disk

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4905031A (en) * 1987-12-14 1990-02-27 Eastman Kodak Company Axial magnetic actuator
KR920022223A (ko) * 1991-05-13 1992-12-19 강진구 광학계 구동장치
US5386107A (en) * 1991-12-23 1995-01-31 Symbol Technologies, Inc. Scanning arrangement and method in which the focus is varied in operative correlation with the scanning angle
US5302812A (en) * 1991-12-23 1994-04-12 Symbol Technologies, Inc. Laser scanning device with automatic range and spot size adjustment
US5272569A (en) * 1992-06-01 1993-12-21 Eastman Kodak Company Apparatus for a fine adjustment focus actuator in an optical information storage system
US5563871A (en) * 1993-11-09 1996-10-08 International Business Machines Corporation. Rotary actuator with a magnetic bias bearing configuration for rotating an optical element in an optical data storage system
US5626034A (en) * 1995-11-17 1997-05-06 Manley; David Mixed refrigerants in ethylene recovery
US6098877A (en) * 1997-05-21 2000-08-08 Symbol Technologies, Inc. Interface and method for controlling an optical reader having a scanning module
JP4654358B2 (ja) * 2005-03-11 2011-03-16 シコー株式会社 レンズ駆動装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1503162A (en) * 1974-02-04 1978-03-08 Thomson Brandt Focus tracking registration for optical reproducing systems
EP0050367A1 (en) * 1980-10-20 1982-04-28 Discovision Associates Lens assembly for a video recorder-playback machine
GB2091902A (en) * 1981-01-26 1982-08-04 Hitachi Ltd Optical scanning device
GB2097151A (en) * 1981-04-20 1982-10-27 Sony Corp Optical mechanical scanning apparatus for reading eg video discs
EP0068757A1 (en) * 1981-06-22 1983-01-05 Sony Corporation Objective lens assemblies for optical disc players
GB2106664A (en) * 1981-09-22 1983-04-13 Mansei Kogyo Kk Lens focussing operating device for video discs
EP0092842A2 (en) * 1982-04-26 1983-11-02 Hitachi, Ltd. Objective lens drive apparatus
GB2134665A (en) * 1982-12-08 1984-08-15 Sony Corp Objective lens drive device
GB2140579A (en) * 1983-04-28 1984-11-28 Pioneer Electronic Corp Optical parts driving mechanism in optical information reader

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088646B (en) * 1980-10-24 1984-09-12 Sony Corp Pick-up assemblies for disc players
JPS57198548A (en) * 1981-05-29 1982-12-06 Victor Co Of Japan Ltd Readout lens device
FR2522860B1 (fr) * 1982-03-02 1989-07-13 Thomson Csf Tete optique d'ecriture-lecture d'un disque optique et dispositif optique associe a une telle tete
JPS59104733A (ja) * 1982-12-08 1984-06-16 Pioneer Electronic Corp 光学式情報読取装置における光学系駆動装置
US4566089A (en) * 1983-03-30 1986-01-21 Mitsubishi Denki Kabushiki Kaisha Deviation correction apparatus for optical disc light beams
NL8303700A (nl) * 1983-10-27 1985-05-17 Philips Nv Electro-optische inrichting.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1503162A (en) * 1974-02-04 1978-03-08 Thomson Brandt Focus tracking registration for optical reproducing systems
EP0050367A1 (en) * 1980-10-20 1982-04-28 Discovision Associates Lens assembly for a video recorder-playback machine
GB2091902A (en) * 1981-01-26 1982-08-04 Hitachi Ltd Optical scanning device
GB2097151A (en) * 1981-04-20 1982-10-27 Sony Corp Optical mechanical scanning apparatus for reading eg video discs
EP0068757A1 (en) * 1981-06-22 1983-01-05 Sony Corporation Objective lens assemblies for optical disc players
GB2106664A (en) * 1981-09-22 1983-04-13 Mansei Kogyo Kk Lens focussing operating device for video discs
EP0092842A2 (en) * 1982-04-26 1983-11-02 Hitachi, Ltd. Objective lens drive apparatus
GB2134665A (en) * 1982-12-08 1984-08-15 Sony Corp Objective lens drive device
GB2140579A (en) * 1983-04-28 1984-11-28 Pioneer Electronic Corp Optical parts driving mechanism in optical information reader

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842392A (en) * 1986-05-26 1989-06-27 Matsushita Electric Industrial Co., Ltd. Objective lens driving unit
US5317552A (en) * 1989-06-13 1994-05-31 Kabushiki Kaisha Toshiba Linear actuator for driving an optical head incorporated in an optical disk

Also Published As

Publication number Publication date
JPS6124820U (ja) 1986-02-14
US4720185A (en) 1988-01-19
DE3524634C2 (enrdf_load_stackoverflow) 1988-11-03
DE3524634A1 (de) 1986-01-16
GB8517551D0 (en) 1985-08-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)